Heavy mechanical complex use a large amount of water for_________?

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1. In a fission nuclear reaction , a heavy nucleus breaks up into smaller nuclei whereas in another nuclear reaction two or more than two possibly nuclei are fused to form a heavy nucleus This nuclear reaction is called ?

   A. Chemical Reaction B. Nuclear reaction C. Fission nuclear reaction D. Fusion nuclear reaction E. None of these...

2. The salinity of sea water is determined by the amount of common salt (Sodium Chloride) in __________ of sea water.

   A. 1 gram B. 10 grams C. 1 kg D. 10 kg...

3. The Doppler’s effect is applicable for_________?

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4. A device that converts mechanical energy into electric energy is called_______?

   A. Motor. B. Transformer. C. Coil. D. Generator....

5. The toxicity of which of the following heavy metals leads to Liver cirrhosis?

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6. The good sources of Vitamin-B Complex are?

   A. green leafy vegetables B. seeds C. fresh vegetables and fruits D. sea foods...

7. The cow’s milk contains how much amount of water in terms of percentage?

   A. 60% B. 65% C. 72% D. 80%...

8. The Cow’s Milk contains how much amount of water in terms of percentage?

   A. 60% B. 65% C. 72% D. 87% Submitted by: Afzal...

9. For seeing objects at the surface of water from a submarine under water, the instrument used is ________?

   A. Periscope B. Telescope C. Kaleidoscope D. Spectroscope Submitted by: Rashid Mehmood...

10. Sea water (Salt water) freezes at ?

    A. Same temperature as fresh water. B. Slightly higher temperatures than fresh water. C. Slightly higher temperature than fresh water. D. Sea water does not freeze Submitted by: Mansoor Ahmed Suhag...